The All New HTC One (also known as the HTC M8) has starred in a lengthy pre-release 12-minute hands-on video that was recorded in mid February and published on YouTube on Sunday. The video, posted initially by YouTube user GadgetReviews, has been pulled, but a copy of it has been reuploaded since. The clip reveals that the handset will indeed pack a microSD slot, a feature not present in previous HTC flagship devices including the HTC One. “Expandability is the key to our consumers,” HTC’s Jack Yang told CNET in a late February interview, hinting that the HTC is reconsidering microSD support for its devices, and it looks like the feature is almost confirmed for the new HTC One.

The video further shows the new HTC One is similar to the first-gen HTC One when it comes to design and size. However, the new phone has a bigger display, lacks physical buttons and has two cameras on the back, which is consistent with what previous rumors and purported press image leaks have suggested about the phone. Meanwhile, the headphone jack has been moved to the bottom.

The video is not that coherent but does show the some of the device’s features in action. The software version of the device is locked on the device, but the new HTC One apparently runs Sense 6.6 on top of KitKat – it’s likely the phone doesn’t run a final software version, which explains some of the bugs and lag encountered along the way. The camera and new camera software features are also somewhat demoed, although the person that recorded the video is unable to share more details about the secondary camera on the back.

While the first hands-on video of a developer version of the All New HTC One has been already published on YouTube, HTC has released a new teaser video to talk about unibody design for the HTC One and its successor, reminding users that the phone will be unveiled on March 25. Both videos follow below.